Headphones
In early powered radios, the headphone was part of the vacuum tube's plate circuit and carried dangerous voltages. It was normally connected directly to the positive high voltage battery terminal, and the other battery terminal was securely grounded.
Nikon
Waterproof, Portable & Durable Bluetooth Speaker
Waterproof means that the device is not adversely affected by contact with water and can withstand water contact without becoming damaged.
35,00 $